3.1 Power Distribution

The WLR089 Xplained Pro Evaluation board can be powered by:
  • EDBG USB
  • TARGET USB
  • External (5V)
The kit has a power MUX which automatically chooses the power source if two or all three of the power sources are available to the kit at the same time.
The kit contains:
  • Two on-board voltage regulators (3.3V) for:
    • EDBG and XAM section
    • WLR089U0 module
  • IO peripherals
  • Power Measurement Section (XAM)
Figure 3-1. Power Supply Block Diagram